Operating Systems. including File Management. By the end of this lesson you will be able to explain the terms:. Operating Systems Functions of an operating system 3 types of processing. Hierarchical file management Device driver Background Job Foreground Job.
including File Management
An operating system is a piece of system software.
The OS software is loaded the instant the computer is switched on.
2. and provides the HCI.
The OS is essential as without it the computer could do nothing.
Answer the following questions in your jotter.
A Quick Refresher
Which type of processing would you suggest for:
Explain why ATM machine do not use batch processing.
How Can This Be Done?
The operating system does jobs in the background by sharing CPU between the foreground and background tasks.
Just think: can you type to keep up with a 3 GHz computer?
Interactive OS let some jobs be done whilst letting you work on tasks. Those jobs are being completed in the background.
You can continue to (foreground job) word process a document whilst you are printing (background job).
OS What am I.pdf
Print then complete these worksheets.
OS Worksheet 1.pdf
Check your answers to worksheet 1.
OS Worksheet 1 answers.pdf